Shockwaves stimulate the release of vascular endothelial growth factor (VEGF) and other angiogenic factors, triggering the formation of new blood vessels in the treated area. This improved blood supply delivers more oxygen and nutrients to damaged tissue — essential for tendons and ligaments that naturally have poor blood supply and heal slowly. Neovascularisation is one of the most important mechanisms, as it addresses the root cause of delayed healing in many chronic conditions.
ESWT reduces pain through multiple pathways: it hyperstimulates nerve endings (overriding pain signals via the gate control mechanism), reduces substance P (a key pain neurotransmitter) in the treated area, and triggers endorphin release. The analgesic effect is often immediate and lasts well beyond the treatment session. With repeated treatments, the pain reduction becomes longer-lasting as the underlying tissue damage actually repairs — not just pain masking, but genuine healing.
The mechanical forces produced by shockwaves stimulate fibroblasts (cells that produce collagen) and osteoblasts (bone-forming cells). In damaged tendons, ESWT promotes the breakdown of disorganised scar tissue and its replacement with properly aligned collagen fibres — restoring the tendon's mechanical properties. In bone, it stimulates new bone formation. This remodelling process is why improvements continue for weeks after the treatment course ends.
ESWT modulates the inflammatory response by influencing cytokine production — reducing pro-inflammatory markers (IL-1, TNF-α) and increasing anti-inflammatory mediators (IL-10). It also stimulates nitric oxide (NO) release, causing vasodilation, improved metabolic activity, and reduced tissue swelling. This is particularly valuable for chronic inflammatory conditions like osteoarthritis, where persistent low-grade inflammation drives ongoing joint deterioration.
When shockwaves pass through tissue, they create microscopic gas bubbles (cavitation) that collapse rapidly, generating localised mechanical forces. This cavitation effect is particularly useful for breaking down calcified deposits in chronic tendinopathies and disrupting fibrotic scar tissue. In non-union fractures, the micro-mechanical forces stimulate the periosteum (bone membrane) and restart the bone healing cascade.
High-pressure, pinpoint precision
High-pressure, pinpoint precision
At RehabVet, we select the appropriate shockwave type based on your dog's specific condition and treatment goals — not based on which machine we happen to own. The condition dictates the tool, not the other way around.
Your therapist examines the treatment area — palpating for the precise location of pain, swelling, or tissue damage. The area may be clipped (if fur is thick) to ensure good acoustic coupling. Ultrasound gel is applied to create an air-free contact surface between the applicator and your dog's skin — air gaps would scatter the shockwaves and reduce effectiveness.
The shockwave applicator is placed firmly against the skin and treatment begins. You'll hear a rhythmic clicking or popping sound as the shockwaves are generated. Treatment starts at lower energy levels and gradually increases to the therapeutic dose. The applicator is moved methodically across the treatment area to cover the entire target zone. Each site receives 500–2,000 pulses depending on the condition, at frequencies of 1–15 Hz.
Throughout treatment, your therapist watches your dog's body language — ear position, muscle tension, weight shifting, facial expression. If your dog shows discomfort, energy is reduced or the applicator is repositioned. Most dogs settle within the first 30–60 seconds as the area begins to desensitise. The total treatment time is typically 5–15 minutes per site.
After treatment, mild redness at the site is normal and expected — it indicates increased blood flow (the treatment is working). Your dog may be slightly tender for 24–48 hours. Light activity is fine; avoid intense exercise for 48 hours post-treatment. Improvement is often noticeable within days, with cumulative benefits building over the treatment course. Your next session is typically scheduled 1–2 weeks later.
The most common application of ESWT. Shockwaves reduce joint pain, stimulate cartilage metabolism, and promote new blood vessel growth in periarticular tissues. Particularly effective for hip, elbow, stifle (knee), and shoulder arthritis. Dogs with chronic arthritis that plateaus on medication alone often show renewed improvement with ESWT — reduced limping, increased activity, and better quality of life.
Dysplastic joints develop secondary arthritis and chronic soft tissue inflammation. ESWT targets the pain and inflammation at the joint capsule, surrounding tendons, and muscle attachments. For dogs managed conservatively (without surgery), ESWT provides pain relief and slows degenerative changes. For post-surgical dysplasia patients, it accelerates healing and reduces scar tissue formation.
For partial cruciate tears being managed conservatively, ESWT stimulates tissue repair and strengthens the remaining ligament fibres — potentially avoiding or delaying surgery. Post-TPLO or TTA surgery, ESWT accelerates bone healing at the osteotomy site, reduces periarticular fibrosis, and speeds return to function. The anti-inflammatory effect also reduces the chronic synovitis (joint inflammation) that accompanies cruciate disease.
Supraspinatus tendinopathy, biceps tenosynovitis, Achilles tendinopathy, and iliopsoas strain respond exceptionally well to ESWT. Shockwaves break down calcified deposits in chronic tendons, stimulate collagen remodelling (replacing disorganised scar tissue with aligned, functional tendon fibres), and restart the healing cascade in tendons that have become "stuck" in chronic inflammation.
Spondylosis deformans, lumbosacral disease, and chronic IVDD benefit from ESWT's analgesic and tissue-remodelling effects. Shockwaves reduce paraspinal muscle spasm, decrease pain at bridging osteophytes, and improve mobility in dogs with stiff, painful spines. Often used alongside manual therapy and acupuncture for comprehensive spinal management.
When fractures fail to heal within the expected timeframe, ESWT can restart the bone healing process. The shockwaves stimulate osteoblast activity (bone-forming cells), promote new blood vessel growth at the fracture site, and trigger the release of growth factors essential for bone repair. This can potentially avoid revision surgery in some cases.
Chronic muscle contractures restrict range of motion and cause compensatory gait changes. ESWT breaks down fibrotic tissue within the muscle, improves blood flow, and reduces pain — allowing the muscle to return to its normal length and function. For trigger points (taut bands of painful muscle), shockwaves provide rapid relief that complements manual therapy.
While ESWT cannot correct the anatomical defect causing patellar luxation, it can treat the secondary soft tissue changes — inflamed joint capsule, strained medial or lateral retinaculum, and associated muscle pain. Post-surgical patellar luxation patients benefit from ESWT to reduce scar tissue and accelerate healing of the reconstructed soft tissues.
| Factor | NSAIDs / Medication | Surgery | Shockwave (ESWT) |
|---|---|---|---|
| Mechanism | Masks pain, reduces inflammation | Physically repairs/replaces structures | Stimulates natural healing + pain relief |
| Invasiveness | Non-invasive (oral) | Invasive (general anaesthesia) | Non-invasive (no anaesthesia) |
| Recovery time | None | 6–16 weeks restricted activity | None (48h light activity) |
| Long-term organ risk | Liver/kidney with prolonged use | Low (one-time event) | None known |
| Addresses root cause | No — symptom management | Yes — structural repair | Yes — cellular-level healing |
| Cost (typical) | $30–$80/month ongoing | $3,000–$8,000+ one-time | $120–$200 × 3–6 sessions |
| Best when | Mild–moderate ongoing pain | Structural failure requiring repair | Chronic conditions plateauing on medication |
Chronic muscle contractures restrict range of motion and cause compensatory gait changes. ESWT breaks down fibrotic tissue within the muscle, improves blood flow, and reduces pain — allowing muscle to return to normal length and function. For trigger points (taut bands of painful muscle), shockwaves provide rapid relief complementing manual therapy.
While ESWT cannot correct the anatomical defect, it treats the secondary soft tissue changes — inflamed joint capsule, strained retinaculum, and associated muscle pain. Post-surgical patellar luxation patients benefit from ESWT to reduce scar tissue and accelerate healing of reconstructed soft tissues.
Spondylosis deformans, lumbosacral disease, and chronic IVDD benefit from ESWT's analgesic and tissue-remodelling effects. Shockwaves reduce paraspinal muscle spasm, decrease pain at bridging osteophytes, and improve mobility in dogs with stiff, painful spines. Often combined with manual therapy and acupuncture.
When fractures fail to heal within the expected timeframe, ESWT can restart the bone healing process. Shockwaves stimulate osteoblast activity, promote new blood vessel growth at the fracture site, and trigger release of growth factors essential for bone repair — potentially avoiding revision surgery.
Some clinics lead with their equipment brand. We lead with your dog's diagnosis. The condition determines which shockwave type, energy level, pulse count, and treatment frequency is appropriate. Equipment is a tool — clinical expertise is what makes it work.
ESWT works best as part of a multimodal programme. At RehabVet, your dog can receive shockwave therapy alongside manual therapy, laser therapy, electrotherapy, acupuncture, hydrotherapy, and HBOT — all coordinated by one team in one visit. No referrals between clinics. One plan, one team, integrated care.
Every treatment protocol is designed or supervised by Dr. Sara, who combines veterinary medical knowledge with rehabilitation expertise. This matters because shockwave therapy has contraindications (tumours, growth plates, infections) that require veterinary assessment, not just therapist training.
Many clinics focus exclusively on canine patients. RehabVet has experience treating cats with ESWT — adapting energy levels, applicator size, and handling protocols for feline anatomy and temperament. If your cat has arthritis or a chronic musculoskeletal condition, ESWT may be appropriate.
Real outcomes from real pet owners across all rehabilitation modalities. Our reviews reflect the quality of clinical assessment, treatment planning, and hands-on care — not just the equipment we use.
